JPH06157216A - Production of moth-proofing agent - Google Patents

Abstract

PURPOSE:To provide a process for producing a moth-proofing agent having excellent durability, safety and water-resistance. CONSTITUTION:The process for the production of a moth-proofing agent comprises a combination of a step to impregnate an insecticide 4A into a water- permeable substrate 1, a step to dry the substrate 1A containing the insecticide and apply (100) coating layers 8, 8 integrally to both faces of the substrate and a step to cut (11) the obtained moth-proofing base plate 12A to prescribed size. A tacky adhesive layer may be formed on one surface of the coating layer 8 and pasted with a releasing paper or the insecticide-containing substrate 1A may have plural layers containing different insecticides.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an insect repellent, which is particularly durable, safe and harmless to the touch of humans, and water resistant even when exposed to rainwater or the like. Regarding the method.

[0002]

2. Description of the Related Art Conventionally, for example, naphthalene, camphor and synthetic compounds have been known as insect repellents for clothes, and these are solidified and used by wrapping them with perforated film or paper. In addition, solid and liquid insecticides (pesticides) are known.

[0003]

[Problems to be Solved by the Invention] The above insect repellent for clothes is hung in a chest or placed at the bottom.
Its surface vaporizes and evaporates and fills the drawer to obtain an insect repellent effect. In this way, since it is in a state of being easily vaporized, in the case of being wrapped in Japanese paper,
The problem is that the insect repellent vaporizes quickly in the summer and in well-heated rooms. It is also said that vaporized substances may soak into the chest of drawers, vaporize again with the pigments in the chest extracted, and then come out of the chest into the chest of drawers, adhering to clothing and creating yellow stains on the clothing. There were difficulties. In addition, a spray type insecticide is known as a cockroach insecticide, but this has to be sprayed on the place where there are cockroaches, and it is not suitable for eliminating cockroaches that appear while people are sleeping at night. Moreover, cockroaches often nest in food vending machines and karaoke boxes, which makes it difficult for people to see. In view of the above situation, the present invention has low vaporization and consumption, has excellent durability, and is safe to be touched by human hands,
It was developed for the purpose of providing an insect repellent that is water resistant even when exposed to rainwater and can be retained in machinery.

[0004]

In order to solve the above problems and to achieve the object, the present invention comprises a step of immersing a water-permeable support in an insecticide solution containing pyrethroid as a main component, pulling and drying, A method for producing an insect repellent, which comprises a step of forming a coating layer on both surfaces of an insecticide-containing support obtained by the above step, and a step of cutting the support layer to a predetermined size thereafter. Action was taken. That is, pyrethroids are a general term for insecticidal components contained in pyrethroids, and are pyrethrins 1 (pyretroids).
rethrin 1), cinerin 1 (cinerin)
1), pyrethrin 2 and cinerin 2 as well as industrially produced allethrin, and synthetic pyrethrins such as furfuryl,
There are also compounds having an ethyl group, a benzyl group, or the like. In addition, pyrethroid has the effect that the effect is improved when a substance having a synergistic action of pyrethrin is added, and it is known that it has a methylenedioxybenzene nucleus as a substance exhibiting a synergistic action, for example, hinokinine and isobutyl. Undecylenamide (i
sobutyrundecyrene amide),
Isosesamine, asarine, piperine
e), egonol, as a synthetic substance,
Piperonyl cyclone
onene), piperonyl budoxide (pipero)
There are nyl butoxide, n-propyl isome, sulfoxide and the like, which are used in an amount of 5 to 10 times that of pyrethroid. The mechanism of the toxic effect of pyrethroids on insects is that when pyrethroids (chrysanthemic acid, chrysanthemic acid) contact the insect body,
It is absorbed into the body through the mouth, mucous membranes, etc., rapidly paralyzing the whole body, causing respiratory distress and dying. This is thought to be caused by the destruction of central nervous tissue cells, but this toxic effect only acts on insects and cold-blooded animals, and is harmless to warm-blooded animals. Pyrethroids are naturally contained in pyrethrum powder, pyrethrum emulsion, and pyrethrum extract. Further, since the pyrethroid itself has low volatility, other volatile substances, for example, cypress oil is mixed to improve volatility as the volatile substance volatilizes. As a commercially available product, there is an exmine emulsion manufactured by Sumitomo Chemical. In addition, pesticides and insecticides commonly used as insecticides can be used alone or in admixture. As the air-permeable support, not only sheet-like sheets such as Japanese paper and synthetic fiber non-woven fabric but also thick ones such as plastics and wood-based minerals can be used. The coating layer is selected from paper, synthetic resin sheet and film, metal foil and the like. As the paper, in addition to ordinary paper, paper having an adhesive or a decorative coating film or a waterproof film, multi-layered paper, a paper sheet having vent holes, and the like are selected. For cutting, tape-shaped, sheet-shaped, perforation-formed, through-hole-formed, chip-shaped, etc. are selected.

[0005]

The present invention constructed as described above has the following actions. That is, when the water-permeable support is impregnated with the insecticide solution, the viscous insecticide solution containing pyrethroid as a main component is impregnated into the water-permeable support. An insect repellent can be obtained by forming a coating layer such as a sheet, paper, or a resin coating film on both surfaces of this water-permeable support and cutting it to a size of, for example, 1 cm 2. Since the insect repellent is not in the form of particles but in a plate shape and the coating layers are formed on both sides, the surface directly in contact with air is only the four cut surfaces, and the coating layer is a breathable material. Since it also has a heat-shielding effect, it can prevent unnecessary vaporization of the insect repellent, improving the convenience and durability of the packaging. Further, since it has a coating layer, it can be used as it is, and even if the insecticide is harmful to the human body such as pesticide, it is safe and harmless just by touching the coating layer with human hands. When formed into a tape, it can be placed in a place where cockroaches come in and out, wrapped around the trunk of a fruit tree where ants gather, or hung or laid sideways at a place where flies gather. When the pressure-sensitive adhesive layer is formed on one surface of the coating layer, the release paper can be peeled off to be stuck and held on a wall, a tree, a machine tool or the like. If the coating layer has water resistance, it is durable against rainwater even if it is placed outdoors for the above-mentioned ant protection, slug protection, etc.

[0006]

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic view showing a process for producing an insect repellent. In FIG. 1, a water-permeable support 1 (hereinafter, simply referred to as a support) has a nonwoven fabric of 50 g / m ² (width 1 m, length 100 m) wound around a core 2. The support 1 is sent out onto the drug tank 4 by the feed roller 3.3, and the insecticide liquid 4A in the drug tank 4 is impregnated by the drug deposition roller 5.5. The pesticide-impregnated support 1A produced through the drying step 6 is sent to the polymerization roller 7.7, and the coating layer materials 8A. 8A is polymerized via the adhesive 9.9, and in the bonding step 10, the coating layers 8.8 are provided on both sides of the insecticide-containing support 1A with the insect repellent substrate 12.
It is formed as A as one body. Next, in a cutting step 11, the insect repellent substrate 12A is cut into a predetermined size to produce the insect repellent 12.12 ... The adhesive 9.9 is a polyethylene resin material formed into an extremely thin film.
In the adhering step 10.10, the insect repellent substrate 12A is formed by adhering to the support 1A and one body by pressing with a heat roller of 60 to 70 ° C. In this case, about 10% of the insecticidal component is lost by heating, and thus the bonding without heating is preferable. The coating layer material 8A. For 8A, a product name, a decorative pattern, an advertisement / advertisement image, a calendar (on a large size), or the like can be printed on the surface in advance. Further, an adhesive may be applied to the back cover layer material and a release paper may be attached thereto. Of course, these steps may be performed after the bonding step. The cutting step includes cutting into a pattern type such as an animal or a vehicle type, and also includes a step of cutting into a certain size and at the same time forming a perforation into small pieces and a vent hole forming step. Be done. Non-woven fabric 1 of 50 g / m ² using pyrethroid exmine emulsion-L (manufactured by Sumitomo Chemical Co., Ltd.) as the insecticide
2.5 g of insecticide was impregnated per 0 cm × 10 cm.
The insect repellent (10 cm × 20 cm) thus obtained was hung in a clothes chest having a height of 120 cm, a depth of 50 cm, and a width of 90 cm, and an insect repellent effect for about 6 months was obtained. Also, add 5 cm x 10 cm insect repellent to height 2
When placed in a drawer-type clothes box of 5 cm, depth 50 cm, width 90 cm, it had an insect repellent effect for about 2 months.

As the insecticide, the exmine emulsion-
2 parts by weight of hinoki oil was mixed with 10 parts by weight of L, and the same treatment as described above was performed, and a polyethylene resin film was used as the coating layer material 8A. Further, an adhesive material was applied to the back surface and release paper was applied. This was cut into a tape with a width of 2 cm, and the release paper was peeled off and pasted on the side wall of the kitchen sink where water was applied, and around the trunk of the peach where ants gathered.
For about a month, it had the effect of keeping cockroaches and ants away.

A copper foil (which may be vacuum-deposited with copper on the surface of the film) may be used as the coating layer material to obtain an insect repellent (2 cm × 2 cm) in the same process as above, and the insect repellent is placed under a flowerpot. When I saved it, it was effective for about 6 months in controlling insects such as slugs, zipper worms, and geji that were gathered under the pot. This copper foil chemically reacts with the water given to the plant to produce a bactericidal action.

FIG. 2 is a schematic view showing a second embodiment of the manufacturing method. In this manufacturing method, the pesticide-containing support 1A is prepared in advance by the method shown in FIG. 1 and is characterized by polymerizing a plurality of sheets. According to this manufacturing method, since a layer of the adhesive 9 is formed between the supports 1A ...
Since each layer has a function as a separator, each support 1A
By changing the type of insecticide to be included in the, it can be a multi-purpose insect repellent, and even when mixed with agents other than insecticide, there is no chemical change due to mixing. Good effect can be obtained, and durability is also improved. In this case, an adhesive may be applied to both surfaces of the film as a separating material, or the separating material may be separately polymerized. Of course, an adhesive may be applied to the surface of the support 1A.

The present invention is not limited to the above-mentioned embodiment, but the design can be changed appropriately. Although shown in the form of a sheet with an adhesive in FIGS. 1 and 2, it is natural that they can be applied. Further, the coating layer may be formed by adhesion of a resin sheet or film formation such that it has water resistance but is also breathable. In the multi-layer type, for example, for cockroaches, one layer is a support containing boric acid-containing food, another layer is a support containing an insecticide, and another layer is a support containing a cockroach attractant. In this case, even if the effect of the insecticide is lost, if the cockroach eats the food-containing support, the cockroach can be killed by boric acid. Similarly, a pesticide-containing saccharide support for ants can be utilized.

[0011]

The present invention constructed as described above has the following excellent effects.

A. The support is impregnated with an insecticide, coated with a coating layer, and cut to obtain an insect repellent, so even if it is touched, it does not come into direct contact with the drug. Also, a large amount of safe insect repellent can be supplied inexpensively.

B. Even if a volatile component causes an insecticidal or insect-proof effect due to volatilization, since both sides of the support are covered with a coating layer, it has a heat-shielding action and a volatile component permeation-controlling action. It is possible to supply an improved insect repellent.

C. When the adhesive or the coating layer has water resistance, it is possible to supply an insect repellent having water resistance and durability even when used in a place where water is handled or outdoors.

D. In the case where a plurality of supports are formed, since the adhesive layer or the separating material between the supports has a separating action, the pesticide species to be included in each support may be changed,
Multi-purpose insect repellent can be supplied by including other chemicals, etc., and even if the thickness is thick, each support is practically thin, so a repellent insect repellent with many chemicals can be supplied. can do.

E. In the case where the pressure-sensitive adhesive layer is formed on the coating layer, it is possible to supply an insect repellent that can be applied to the trunk of a tree, a wall surface, a ceiling, the inside of a machine or the like.

[Brief description of drawings]

FIG. 1 is a schematic view of a method for producing an insect repellent.

FIG. 2 is a schematic view of a portion where a plurality of supports are polymerized in the manufacturing method.

[Explanation of symbols]

 1 Water-permeable support 1A Insecticide-containing support 2 Core 3 Feed roller 4 Chemical tank 4A Insecticidal solution 5 Roller with medicine 6 Drying process 8 Coating layer 8A Coating layer material 9 Adhesive 10 Adhesion step 11 Cutting Process 12 Insect repellent 12A Insect repellent substrate

Claims (4)

[Claims] 1. A step of immersing a water-permeable support in a pesticide solution containing pyrethroid as a main component, pulling and drying, and a step of forming a coating layer on both surfaces of the pesticide-containing support after the drying. Then, a method for producing an insect repellent, which comprises a step of cutting into a predetermined size. 2. A step of impregnating a water-permeable support with an insecticide, a step of forming a coating layer on both sides of the insecticide-impregnated support obtained in the step, and then cutting into a predetermined size. A method for producing an insect repellent, which comprises combining with the step of: 3. A step of impregnating a pesticide on a water-permeable support, a step of polymerizing and bonding a plurality of pesticide-impregnated supports obtained by the step, and then cutting into a predetermined size. A method for producing an insect repellent, which comprises binding of 4. A step of impregnating a water-permeable support with an insecticide, a step of forming a coating layer on both sides of the pesticide-impregnated support obtained in the step, and one surface of the coating layer. A method for producing an insect repellent, which comprises a step of forming an adhesive layer and attaching a release paper to the surface of the adhesive layer, and a step of cutting it into a predetermined size thereafter.